Sea Squirt is Stable Girl Uniqua's small racing dolphin. Uniqua named him after his below-average size. Sea Squirt can seem quickly and is an exceptional dolphin racer. He had been afraid of the giant clam prior to the events of "The Great Dolphin Race". But he has found his courage to stand up to it by letting out sonic screams that frighten the Giant Clam.
Looks
Sea Squirt is mostly gray with a white underside. He has a short dorsal fin, two flippers, black eyes, and black eyebrows.
Appearances
Sea Squirt has appeared in one episode of The Backyardigans: "The Great Dolphin Race" from season three.